from tkinter import *

print('Введите начальную координату Х:')
X = int(input())
print('Введите начальную координату У:')
Y = int(input())
print('Введите коэффициент увеличения :')
N = int(input())
coords = [0,0,10,0,10,10,20,10,20,20,10,20,10,30,0,30]
if N == 0 and X>=0 and X<=500 and Y>=0 and Y<=500: pass
else:
    if N > 0 and 0*N+X>=0 and 0*N+Y>=0 and 20*N+X<=500 and 30*N+Y<=500:
        pass
    else:
        if N <0 and 20*N+X>=0 and 30*N+Y>=0 and 0*N+X<=500 and 0*N+Y<=500:
            pass
        else:
            print("Размер фигуры превышает максимальный размер поля")
            exit()
root = Tk ()
root.title ("ИТ марафон")
root.geometry ("500x500")
canvas = Canvas (bg="white", width=500, height=500)
canvas.pack (anchor=CENTER, expand=1)
canvas.create_polygon (coords[0] *N+X, coords [1] *N+Y,
coords [2] *N+X, coords [3] *N+Y,
coords [4] *N+X, coords [5] *N+Y,
coords [6] *N+X, coords [7] *N+Y, 
coords [8] *N+X, coords[9] *N+Y,
coords [10] *N+X, coords [11] *N+Y,
coords [12] *N+X, coords [13] *N+Y,
coords [14] *N+X, coords [15] *N+Y,)
root.mainloop()
